Finding the Fourth Proportional to 10,238.60, 14,363.20 and 10,238.60

Step by Step Solution

1. Step 1: Write the proportion equation
   10,238.60 : 14,363.20 = 10,238.60 : x
2. Step 2: Convert to fraction form
   10,238.60/14,363.20 = 10,238.60/x
3. Step 3: Cross multiply
   10,238.60x = 14,363.20 × 10,238.60
4. Step 4: Simplify right side
   10,238.60x = 147,059,059.52
5. Step 5: Solve for x
   x = 147,059,059.52/10,238.60
6. Step 6: Final answer
   x = 14,363.20